CN103352702A - Receiving constructing method in shield tunnel - Google Patents

Receiving constructing method in shield tunnel Download PDF

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Publication number
CN103352702A
CN103352702A CN2013102867416A CN201310286741A CN103352702A CN 103352702 A CN103352702 A CN 103352702A CN 2013102867416 A CN2013102867416 A CN 2013102867416A CN 201310286741 A CN201310286741 A CN 201310286741A CN 103352702 A CN103352702 A CN 103352702A
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CN
China
Prior art keywords
shield
confined chamber
tunnel
constructing
shield tunnel
Prior art date
Application number
CN2013102867416A
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Chinese (zh)
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CN103352702B (en
Inventor
邓朝辉
肖明清
陈建桦
鲁志鹏
蒋超
刘浩
薛光桥
龚擎玉
Original Assignee
中铁第四勘察设计院集团有限公司
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Publication date
Application filed by 中铁第四勘察设计院集团有限公司 filed Critical 中铁第四勘察设计院集团有限公司
Priority to CN201310286741.6A priority Critical patent/CN103352702B/en
Publication of CN103352702A publication Critical patent/CN103352702A/en
Application granted granted Critical
Publication of CN103352702B publication Critical patent/CN103352702B/en

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Abstract

The invention discloses a receiving constructing method in a shield tunnel. According to the receiving constructing method in the shield tunnel, a sealed chamber is arranged at the end point of the shield tunnel, water or other padding is filled in the sealed chamber, when a shield tunneling machine arrives, the shield tunneling machine is propelled to the sealed chamber directly from a ground layer, the shield tunneling machine is removed from a shield excavation segment in the sealed chamber, underground water is sealed by the utilization of a grouting layer of a shield tail, and slurry shield receiving is completed. According to the receiving constructing method in the shield tunnel, underground water inburst can be avoided in the constructing process, ground layer collapse is avoided, constructing risk is reduced, and constructing efficiency is improved.

Description

Receive construction in a kind of shield structure hole
Technical field
The present invention relates to the shield tunnel construction technology field, refer to particularly receive in a kind of shield structure hole that is applied in the slurry shield machine construction.
Background technology
Slurry shield machine is a kind of tunnel construction machinery commonly used, and it is by the Water And Earth Pressures balance of pressurization mud hydraulic pressure and tunnel excavation face, and by the quarrel soil that the muddy water that circulates will cut carry appear outside.The construction process of slurry shield machine is identical with general shield machine, has shield launching, the normal process such as driving and the reception of shield structure, and wherein to receive be principal risk point and the emphasis of its construction in the arrival of slurry shield.
As shown in Figure 1, existing slurry balance shield arrives and receives engineering method is that shield machine reaches the front outer soil mass consolidation 11 that is arranged with at active well 10, when shield machine tunnels to active well 10 space enclosing structure, cut the space enclosing structure at shield machine place, subsequently, shield machine is pushed into active well after passing the interim antipriming 12 that is installed in the active well inwall, the grouting layer in the tunneling process between the section of jurisdiction outer wall of the profile of while segment assembly and back synchronous injection filling shield machine excavation and laying.
In use there is following problem in this reception programme:
1, shield machine is about to the muddy water eliminating after arriving the active well space enclosing structure, because the cutterhead digging diameter is bigger than the shield body, underground water will pour in along the gap between shield machine housing and the reinforcing body in the larger stratum of permeability, if the while reinforcing body flaw occurs and will also cause underground water to pour in, and then the generation ground subsidence, construction risk is large.
2, the interim antipriming waterproof effect of shield machine arrival is poor, constructional difficulties: existing arrival water-tight device all adopts the clamp plate type water-tight device, this device needs after shield machine shield body passes antipriming, the artificial clamp that promotes, withstand shield body water-tight device, because of shield structure below narrow space, manually be difficult to enter construction on the one hand; In addition, because the shield body is one to fall capitate, in the shield driving process, clamp can't tighten, and is difficult to reach purpose of design.
Therefore, need prior art is improved.
Summary of the invention
Purpose of the present invention will provide exactly and receive construction in a kind of shield structure hole, to solve the problem in the above-mentioned background technology.
Technical scheme of the present invention is: receive construction in a kind of shield structure hole, it is characterized in that, it may further comprise the steps:
1), arranges at the shield tunnel destination county and be provided with packing material in the confined chamber by confined chamber;
2), when shield machine driving at the shield tunnel terminal point time, muddy water enters in the confined chamber and mixes with packing material;
3), shield machine continues to tunnel in confined chamber, carries out slip casting to the grouting layer between the section of jurisdiction outer wall of the profile of shield machine excavation and laying synchronously;
4), when shield machine tunnels and arrives the shield tunnel terminal point to the shield tail of shield machine, grouting layer slip casting is complete;
5), after the slurries in grouting layer solidify, remove confined chamber, the shield structure is finished.
In such scheme:
Described confined chamber is arranged on the destination county of shield tunnel, is provided with packing material in the described confined chamber, and the cross-sectional area of described confined chamber is greater than the cross-sectional area of shield tunnel.
Described packing material is water.
The abutted surface of described closed chamber and shield tunnel is that the resin steel bar concrete wall are or/and the soil body of oblique support.
Underground water poured in when the present invention can prevent from constructing, and avoided occuring ground subsidence, reduced construction wind, improved efficiency of construction.
Description of drawings
Fig. 1 receives structural representation in the existing shield structure hole;
Fig. 2 receives structural representation in the shield structure hole among the present invention;
Fig. 3 is the section structure schematic diagram of Fig. 2;
Fig. 4 receives the structural representation that shield machine in the construction does not enter confined chamber in the shield structure hole;
Fig. 5 receives the structural representation that shield machine in the construction enters confined chamber in the shield structure hole;
Fig. 6 is structural representation when the shield tail of shield machine arrives the shield tunnel terminal point in the reception construction in the shield structure hole.
The specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Receive structure in the existing shield structure hole as shown in Figure 1, in background technology, done detailed description, repeat no more in this.
As receiving structure in Fig. 2, a kind of shield structure hole shown in Figure 3, it comprises shield tunnel 2, the destination county of shield tunnel 2 is provided with confined chamber 1, confined chamber 1 is provided with packing material, the cross-sectional area of confined chamber 1 is greater than the cross-sectional area of shield tunnel 2, and namely confined chamber 1 section and length should guarantee at least that shield machine 6 passes through.Closed chamber 1 is stable for guaranteeing that shield machine arrives pre-structure with shield tunnel 2 abutted surfaces, can adopt resin steel bar concrete wall 4 or/and the soil body 3 of oblique support etc.
Packing material in the present embodiment is water, also can for: in muddy water enters confined chamber, in the confined chamber mud hydraulic pressure can with the shield tunneling space in the ground water pressure dynamic balance or greater than the other materials of groundwater pressure.
Such as Fig. 4, Fig. 5, shown in Figure 6, a kind of construction that receives structure in the shield structure hole described above that adopts may further comprise the steps:
1), arranges at shield tunnel 2 destination counties and be provided with packing material in the confined chamber 1 by confined chamber 1;
Wherein confined chamber 1 is connected interface according to interface stratum stability requirement with shield tunnel 2, can adopt the modes such as soil body step, stratum consolidation, but must not have the driving that hinders shield machine 6;
2), when shield machine 6 driving at shield tunnel 2 terminal point the time, muddy water enters in the confined chamber 1 and mixes with packing material; Confined chamber 1 interior mud hydraulic pressure can with shield machine 6 excavation spaces in the ground water pressure dynamic balance or greater than groundwater pressure, avoid underground water to gush out; This step has guaranteed ground water pressure dynamic balance in the tunneling process, therefore the interim antipriming in the existing design needn't be set, has reduced difficulty of construction and construction risk;
3), shield machine 6 continues to confined chamber 1 interior driving, carries out slip casting to the grouting layer 7 between the section of jurisdiction outer wall 9 of the profile 8 of shield machine 6 excavations and laying by the mode of synchronous grouting, secondary grouting synchronously;
4), when shield machine 6 tunnels and arrives shield tunnels 2 terminal point to the shield tail 5 of shield machine 6, grouting layer 7 slip castings are complete;
5), after the slurries in grouting layer 7 solidify, the underground water complete closed is removed confined chamber 1, the shield structure is finished.
Among the present invention, confined chamber 1 hangs out shield machine according to its design feature after can directly removing, and also can remove the plug wall in shield structure the place ahead, and shield machine hangs out shield machine after being advanced active well.

Claims (4)

1. receive construction in a shield structure hole, it is characterized in that, it may further comprise the steps:
1), arrange confined chamber (1) at shield tunnel (2) destination county, confined chamber is provided with packing material in (1);
2), when shield machine (6) driving at shield tunnel (2) terminal point the time, muddy water enters in the confined chamber (1) and mixes with packing material;
3), shield machine (6) continues driving in the confined chamber (1), carries out slip casting to the grouting layer (7) between the section of jurisdiction outer wall (9) of the profile (8) of shield machine (6) excavation and laying synchronously;
4), when shield machine (6) tunnels and arrives shield tunnel (2) terminal point to the shield tail (5) of shield machine (6), grouting layer (7) slip casting is complete;
5), after the slurries in grouting layer (7) solidify, remove confined chamber (1), the shield structure is finished.
2. receive construction in the shield structure according to claim 1 hole, it is characterized in that: described confined chamber (1) is arranged on the destination county of shield tunnel (2), described confined chamber is provided with packing material in (1), and the cross-sectional area of described confined chamber (1) is greater than the cross-sectional area of shield tunnel (2).
3. receive construction in the shield structure according to claim 2 hole, it is characterized in that: described packing material is water.
4. receive construction in the shield structure according to claim 1 hole, it is characterized in that: described closed chamber (1) is that resin steel bar concrete wall (4) are or/and the soil body of oblique support (3) with the abutted surface of shield tunnel (2).
CN201310286741.6A 2013-07-09 2013-07-09 A kind of shield structure receives construction in hole CN103352702B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310286741.6A CN103352702B (en) 2013-07-09 2013-07-09 A kind of shield structure receives construction in hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310286741.6A CN103352702B (en) 2013-07-09 2013-07-09 A kind of shield structure receives construction in hole

Publications (2)

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CN103352702A true CN103352702A (en) 2013-10-16
CN103352702B CN103352702B (en) 2016-05-04

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103899325A (en) * 2014-04-23 2014-07-02 上海隧道工程股份有限公司 Construction method for shield machine to enter hole to receive concrete box
CN105422107A (en) * 2015-12-31 2016-03-23 北京建工土木工程有限公司 Method for receiving shield tunneling machine in tunnel

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1463632A (en) * 1975-01-10 1977-02-02 Genton J C Method of positioning and underpass below another roadway by hydraulic drive-through and the constructive work obtained thereby
DE4409049C1 (en) * 1994-03-17 1995-03-30 Hochtief Ag Hoch Tiefbauten Method of replacing the supporting liquid by compressed air and use of a hydraulic shield for carrying out the method
CN1995701A (en) * 2006-12-30 2007-07-11 广东省基础工程公司 Mechanical breaking construction method for use as shield tunneling machine reached tunnel portal
CN201424941Y (en) * 2009-06-15 2010-03-17 广东华隧建设股份有限公司 Device for airtight starting and reaching of shield machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1463632A (en) * 1975-01-10 1977-02-02 Genton J C Method of positioning and underpass below another roadway by hydraulic drive-through and the constructive work obtained thereby
DE4409049C1 (en) * 1994-03-17 1995-03-30 Hochtief Ag Hoch Tiefbauten Method of replacing the supporting liquid by compressed air and use of a hydraulic shield for carrying out the method
CN1995701A (en) * 2006-12-30 2007-07-11 广东省基础工程公司 Mechanical breaking construction method for use as shield tunneling machine reached tunnel portal
CN201424941Y (en) * 2009-06-15 2010-03-17 广东华隧建设股份有限公司 Device for airtight starting and reaching of shield machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
于加云: "盾构到达突发涌水处理及水中到达方案分析", 《隧道建设》, vol. 33, no. 4, 10 April 2013 (2013-04-10), pages 315 - 318 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103899325A (en) * 2014-04-23 2014-07-02 上海隧道工程股份有限公司 Construction method for shield machine to enter hole to receive concrete box
CN103899325B (en) * 2014-04-23 2016-04-13 上海隧道工程有限公司 The construction method that concrete casing shield receives
CN105422107A (en) * 2015-12-31 2016-03-23 北京建工土木工程有限公司 Method for receiving shield tunneling machine in tunnel

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